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Published on Jan 29, 2011
LiFePO4 A123 Systems. Check my Solar BMS project on Kickstarter http://electrodacus.com/k This is today the best rechargeable Battery for EV, Solar, Wind and more. I have purchased this 18650 3.3V or(3.2V) 1100mA battery on eBay for about 0.6$/Wh including shipping. In large quantities probably over 1KWh you can get this at even lower price/Wh For now this are probably the best battery for almost any application if compared price vs performance. They are much safer than other Lithium batteries and will not explode or burn.